In a system and method for generating a 3-dimensional representation of a portion of an organism, collecting training data, wherein the training data includes a first set of training data and a second set of training data. At least one statistical model having a set of parameters is built using the training data. The at least one statistical model is compared to a 2-dimensional image of the portion of the organism. At least one parameter of the set of parameters of the statistical model is modified based on the comparison of the at least one statistical model to the 2-dimensional image of the portion of the organism. The modified set of parameters representing the portion of the organism is passed through the statistical model.